Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
deuber.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 18:25:00 UTC · ↺ Refresh
MX Hostnames
- remote.deuber.de
- deuber-de.mail.protection.outlook.com
MX Priorities
- deuber-de.mail.protection.outlook.com: 10
- remote.deuber.de: 20
A / AAAA Records
- 81.88.36.54 ↩ host154.alfahosting-server.de
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 93.241.221.47 ↩ remote.deuber.de
SOA Record
Raw SOA
cns1.alfahosting.info hostmaster\@alfahosting.de 2026040401 28800 7200 604800 10800
Primary NS (mname)
cns1.alfahosting.info
Admin Email (rname)
hostmaster\@alfahosting@de
Serial
2026040401
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
cns1.alfahosting.info
cns2.alfahosting.info
cns3.alfahosting.info
SPF Record
✓ Strict (-all)
v=spf1 a mx include:secure-mailgate.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- brevo-code:572fa6ed7cddeca238e9aa70df84c25d
- MS=ms43287330
- SPFv=spf1 a mx include:secure-mailgate.com include:spf.protection.outlook.com -all
- google-site-verification=wSt1M_FOh0xdZicAjkhxEgrYJ_NUeaQSIQq5FAxt76E
Full email verification for deuber.de
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